
FMMT459Q
Document number: DS37019 Rev. 1 - 2
2 of 7
www.diodes.com
March 2014
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FMMT459Q
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Absolute Maximum Ratings (@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol Value Unit
Collector-Base Voltage
V
CBO
500 V
Collector-Emitter Voltage
V
CEV
500 V
Collector-Emitter Voltage
V
CEO
450 V
Emitter-Base Voltage
V
EBO
7 V
Emitter-Collector Voltage
V
ECV
6 V
Continuous Collector Current
I
C
150 mA
Peak Pulse Current
I
CM
500 mA
Base Current
I
B
200 mA
Thermal Characteristics (@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
P
D
625 mW
Power Dissipation (Note 7)
P
D
806 mW
Thermal Resistance, Junction to Ambient (Note 6)
R
θJA
200
C/W
Thermal Resistance, Junction to Ambient (Note 7)
R
θJA
155
C/W
Thermal Resistance, Junction to Leads (Note 8)
R
θJL
194
C/W
Operating and Storage Temperature Range
T
J,
T
STG
-55 to +150
C
ESD Ratings (Note 9)
Characteristic Symbol Value Unit JEDEC Class
Electrostatic Discharge - Human Body Model ESD HBM 4,000 V 3A
Electrostatic Discharge - Machine Model ESD MM 400 V C
Notes: 6. For a device mounted with the collector lead on 25mm x 25mm 1oz copper that is on a single-sided FR4 PCB; device is measured under still air
conditions whilst operating in a steady-state.
7. Same as note 6, except the device is measured at t ≤ 5 sec.
8. Thermal resistance from junction to solder-point (at the end of the collector lead).
9. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
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